{"product_id":"klipsch-heresy-iv-floorstanding-speakers-the-grid-hifi-open","title":"Klipsch Heresy IV Floorstanding Speakers Open Box | The Grid HiFi","description":"\u003ch1 data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eKlipsch Heresy IV Floorstanding Speakers Red Oak open box\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe compact Klipsch Heritage legend—now with deeper bass, updated horn technology, and the unmistakable dynamics that made Heresy famous.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFirst introduced in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1957\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eKlipsch Heresy IV\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a compact three-way floorstanding speaker built around the principles that have defined Klipsch Heritage loudspeakers for generations: high efficiency, horn-loaded compression drivers, powerful dynamics, and handcrafted American cabinetry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe fourth-generation Heresy receives substantial acoustic upgrades, including a new K-702 midrange compression driver, K-704 Tractrix horn, titanium-diaphragm tweeter, redesigned crossover network, and—for the first time in Heresy history—a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erear-firing Tractrix port\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. The result is deeper bass extension and a more refined presentation without sacrificing the speed and efficiency that define the Heresy.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eClassic Three-Way Horn-Loaded Design\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Heresy IV combines a large \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12-inch fiber-composite woofer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with horn-loaded midrange and high-frequency compression drivers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis three-way architecture allows each driver to operate within a focused frequency range while maintaining the extraordinary efficiency for which Klipsch Heritage speakers are known.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e99dB sensitivity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the Heresy IV can produce substantial output with relatively modest amplifier power, making it an excellent match for everything from high-quality tube amplifiers to powerful modern solid-state electronics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eK-702 Midrange + Tractrix Horn\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eK-702 compression driver with a 1.75-inch polyimide diaphragm\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e handles the critical midrange frequencies.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is coupled to Klipsch's \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eK-704 Tractrix horn\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing broad coverage and controlled dispersion throughout the listening area.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe combination delivers the immediacy, vocal presence, and dynamic impact associated with classic Klipsch horn-loaded loudspeakers while improving smoothness and consistency across the listening position.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTitanium-Diaphragm Tweeter\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eHigh frequencies are handled by the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eK-107-TI 1-inch titanium-diaphragm compression driver\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKlipsch equips the tweeter with a wide-dispersion phase plug engineered to provide more even high-frequency coverage and a broader, more consistent listening area.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe result is crisp transient response and the effortless sense of scale that has long distinguished Klipsch Heritage loudspeakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e12-Inch Fiber-Composite Woofer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12-inch K-28-E fiber-composite woofer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e gives the Heresy IV considerably more physical impact than its relatively compact cabinet might suggest.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe large woofer works with the speaker's rear Tractrix port to provide fast, authoritative low-frequency reproduction while preserving the high sensitivity fundamental to the Heresy design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHeresy Gets a Tractrix Port\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Heresy IV is the first generation in the model's history to use a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003erear-firing port\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKlipsch's Tractrix port incorporates carefully shaped inner flares designed to reduce air turbulence and port noise. The new bass-reflex architecture improves low-frequency extension by almost \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e10Hz compared with the previous generation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrequency response now reaches \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e48Hz–20kHz ±4dB\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, giving the Heresy IV greater bass weight while retaining its compact proportions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCompletely Redesigned Crossover\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eKlipsch completely revoiced the Heresy IV with a new high-fidelity crossover network using premium components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe network draws from the steep-slope three-way designs used in legendary Heritage models including the Klipschorn, La Scala, and Cornwall.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrossover points are set at \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e850Hz and 4.5kHz\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, integrating the 12-inch woofer, horn-loaded midrange, and titanium compression tweeter into a cohesive three-way system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eExceptional Efficiency\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eOne of the Heresy IV's greatest strengths remains efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e99dB sensitivity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it requires dramatically less amplifier power to reach realistic listening levels than many conventional loudspeakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePower handling is rated at \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100 watts continuous \/ 400 watts peak\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, with maximum continuous output specified at \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e116dB\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThat combination of efficiency and output capability gives the Heresy IV its characteristic sense of immediacy and dynamic scale.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHandcrafted Heritage Cabinetry\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eHeresy IV cabinetry is handcrafted in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHope, Arkansas\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, continuing a Klipsch Heritage manufacturing tradition spanning more than five decades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHeritage speaker pairs use \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ebook-matched wood veneers\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e cut from the same timber and arranged to create complementary grain patterns. Finished pairs are inspected and given sequential serial numbers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe removable slant riser angles the speaker toward the listening position and can also be removed for alternative placement or installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSpeaker Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3-way horn-loaded floorstanding loudspeaker\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency Response\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48Hz–20kHz ±4dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSensitivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e99dB @ 2.83V \/ 1m\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Handling\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100W continuous \/ 400W peak\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum SPL\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e116dB continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNominal Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8Ω compatible\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-Frequency Crossover\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.5kHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMidrange Crossover\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e850Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTweeter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK-107-TI 1\" titanium compression driver\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMidrange\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK-702 1.75\" polyimide compression driver\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMidrange Horn\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK-704 Tractrix\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWoofer\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eK-28-E 12\" fiber-composite cone\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBass Loading\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRear-firing Tractrix port\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInputs\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDual binding posts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBi-Wire \/ Bi-Amp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCabinet Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMDF with real wood veneer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eHeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24.81\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWidth\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15.5\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDepth\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13.25\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e45 lbs each\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 years\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDesigned \u0026amp; Assembled\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eKlipsch's current product page lists \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSatin Black Ash, Distressed Oak, and American Walnut\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, while the technical sheet also references Natural Cherry. For the Shopify variant selector, I would use only the finishes actually available to you rather than automatically loading every historically documented finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKlipsch Heresy IV at The Grid HiFi\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eKlipsch Heresy IV\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is one of the most recognizable American loudspeaker designs ever produced. Its 12-inch woofer, horn-loaded compression drivers, 99dB sensitivity, handcrafted Heritage cabinetry, and remarkably compact footprint make it equally compelling for dedicated two-channel systems, vinyl listening rooms, and high-impact home audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Grid HiFi can help pair the Heresy IV with the right tube or solid-state amplification, turntable, streamer, subwoofer, cabling, and system setup to get the most from this Klipsch Heritage classic.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVisit The Grid HiFi in Houston or call \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e(713) 218-8120\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for availability and system recommendations.\u003c\/span\u003e\u003c\/p\u003e","brand":"Klipsch","offers":[{"title":"Red Oak","offer_id":55341367198033,"sku":null,"price":1599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1047\/7178\/0945\/files\/Heresy-IV-next-to-a-motorcycle-1.jpg?v=1786055473","url":"https:\/\/gridhifi.com\/products\/klipsch-heresy-iv-floorstanding-speakers-the-grid-hifi-open","provider":"The Grid","version":"1.0","type":"link"}